<!--
 * @Description: 
 * @Author: zhihong deng
 * @Date: 2021-07-06 10:52:35
 * @LastEditors: zhihong deng
 * @LastEditTime: 2021-07-06 23:42:15
-->
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <button id="connect">连接</button>
  <button id="send" disabled=true>发送数据</button> <br>
  从服务器端接收的数据如下：<br>
  <span id="recv"></span>
  <script>
    var connect = document.querySelector('#connect');
    var send = document.querySelector('#send');
    var recv = document.querySelector('#recv');
    let ws = null;
    connect.onclick = function(){
      ws = new WebSocket('ws://localhost:8860');
      ws.onopen = () => {
        console.log('连接服务器成功');
        send.disabled = false;
      }
      ws.onclose = () => {
        console.log('连接服务器失败');
        send.disabled = true;
      }
      ws.onmessage = msg => {
        console.log('接收到服务端发送过来的数据了');
        console.log(msg);
        recv.innerHTML = msg.data;
      }
    }
    send.onclick = function(){
      ws.send(JSON.stringify({
        action: 'themeChange',
        socketType: 'themeChange',
        chartName: '',
        value: 'chalk'
      }))
    }
  </script>
</body>
</html>